generalized integrals
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21—30 of 194 matching pages
21: 19.15 Advantages of Symmetry
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►Symmetry makes possible the reduction theorems of §19.29(i), permitting remarkable compression of tables of integrals while generalizing the interval of integration.
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22: 1.17 Integral and Series Representations of the Dirac Delta
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►From the mathematical standpoint the left-hand side of (1.17.2) can be interpreted as a generalized integral in the sense that
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►More generally, assume is piecewise continuous (§1.4(ii)) when for any finite positive real value of , and for each , converges absolutely for all sufficiently large values of .
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►Hence comparison with (1.17.5) shows that (1.17.9) can be interpreted as a generalized integral (1.17.3) with
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►The sum does not converge, but (1.17.18) can be interpreted as a generalized integral in the sense that
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23: 19.20 Special Cases
24: 2.6 Distributional Methods
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2.6.3
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►Although divergent, these integrals may be interpreted in a generalized sense.
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►Corresponding results for the generalized
Stieltjes transform
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2.6.58
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►However, in the theory of generalized functions (distributions), there is a method, known as “regularization”, by which these integrals can be interpreted in a meaningful manner.
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25: 35.8 Generalized Hypergeometric Functions of Matrix Argument
26: 2.11 Remainder Terms; Stokes Phenomenon
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►From §8.19(i) the generalized exponential integral is given by
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2.11.5
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2.11.6
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►However, on combining (2.11.6) with the connection formula (8.19.18), with , we derive
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►Two different asymptotic expansions in terms of elementary functions, (2.11.6) and (2.11.7), are available for the generalized exponential integral in the sector .
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27: Bibliography O
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Uniform, exponentially improved, asymptotic expansions for the generalized exponential integral.
SIAM J. Math. Anal. 22 (5), pp. 1460–1474.
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The Generalized Exponential Integral.
In Approximation and Computation (West Lafayette, IN, 1993), R. V. M. Zahar (Ed.),
International Series of Numerical Mathematics, Vol. 119, pp. 497–510.
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